from ...utils import needs_py310


@pytest.fixture(
    name="app",
    params=[
        pytest.param("tutorial002_py39"),
        pytest.param("tutorial002_py310", marks=needs_py310),
        pytest.param("tutorial002_an_py39"),
        pytest.param("tutorial002_an_py310", marks=needs_py310),
    ],
)
def get_app(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.websockets.{request.param}")

# Get Current User { #get-current-user }

In the previous chapter the security system (which is based on the dependency injection system) was giving the *path operation function* a `token` as a `str`:

{* ../../docs_src/security/tutorial001_an_py39.py hl[12] *}

But that is still not that useful.

Let's make it give us the current user.

## Create a user model { #create-a-user-model }

First, let's create a Pydantic user model.

Im vorherigen Kapitel hat das Sicherheitssystem (das auf dem Dependency Injection System basiert) der *Pfadoperation-Funktion* einen `token` vom Typ `str` überreicht:

{* ../../docs_src/security/tutorial001_an_py39.py hl[12] *}

Aber das ist immer noch nicht so nützlich.

Lassen wir es uns den aktuellen Benutzer überreichen.

## Ein Benutzermodell erstellen { #create-a-user-model }

//// tab | Python 3.10+

{* ../../docs_src/background_tasks/tutorial002_an_py310.py hl[13, 15, 22, 25] *}

////

//// tab | Python 3.9+

{* ../../docs_src/background_tasks/tutorial002_an_py39.py hl[13, 15, 22, 25] *}

////

//// tab | Python 3.8+

{* ../../docs_src/background_tasks/tutorial002_an.py hl[14, 16, 23, 26] *}

////

//// tab | Python 3.10+ 没Annotated

/// tip

from ...utils import needs_py310


@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial004_py39"),
        pytest.param("tutorial004_py310", marks=needs_py310),
        pytest.param("tutorial004_an_py39"),
        pytest.param("tutorial004_an_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.body_multiple_params.{request.param}")

Por exemplo, `dependency_c` pode depender de `dependency_b`, e `dependency_b` depender de `dependency_a`:

{* ../../docs_src/dependencies/tutorial008_an_py39.py hl[6,14,22] *}

E todas elas podem utilizar `yield`.

Neste caso, `dependency_c`, para executar seu código de saída, precisa que o valor de `dependency_b` (nomeado de `dep_b` aqui) continue disponível.

For example, `dependency_c` can have a dependency on `dependency_b`, and `dependency_b` on `dependency_a`:

{* ../../docs_src/dependencies/tutorial008_an_py39.py hl[6,14,22] *}

And all of them can use `yield`.

In this case `dependency_c`, to execute its exit code, needs the value from `dependency_b` (here named `dep_b`) to still be available.

Pydantic의 모델 구성을 사용하여 추가(`extra`) 필드를 금지(`forbid`)할 수 있습니다:

{* ../../docs_src/cookie_param_models/tutorial002_an_py39.py hl[10] *}

클라이언트가 **추가 쿠키**를 보내려고 시도하면, **오류** 응답을 받게 됩니다.

<abbr title="이건 또 다른 농담입니다. 제 말에 귀 기울이지 마세요. 커피랑 쿠키 좀 드세요. ☕">API가 거부</abbr>하는데도 동의를 얻기 위해 애쓰는 불쌍한 쿠키 배너(팝업)들. 🍪

Pydanticのモデルの Configuration を利用して、 `extra` フィールドを `forbid` とすることができます。

{* ../../docs_src/cookie_param_models/tutorial002_an_py39.py hl[10] *}

もしクライアントが**余分なクッキー**を送ろうとすると、**エラー**レスポンスが返されます。

No capítulo anterior, o sistema de segurança (que é baseado no sistema de injeção de dependências) estava fornecendo à *função de operação de rota* um `token` como uma `str`:

{* ../../docs_src/security/tutorial001_an_py39.py hl[12] *}

Mas isso ainda não é tão útil.

Vamos fazer com que ele nos forneça o usuário atual.

## Criar um modelo de usuário { #create-a-user-model }